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btk6al
how exactly do you "bombard" an atom in a nuclear reaction?
Say you want to make a fission reaction, how exactly do you launch a neutron toward this atom to split it? Which device do you use? I am not sure if you launch another atom or just a neutron.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/btk6al/eli5_how_exactly_do_you_bombard_an_atom_in_a/
{ "a_id": [ "eoz3xj9", "eoz7cqs", "eozjmau" ], "score": [ 2, 3, 2 ], "text": [ "In a nuclear reactor there are lots and lots of neutrons pinging about. They're being fired off by the radioactive decay of the fuel in all directions. To start a nuclear reactor, neutron sources are us...
[]
[]
[ [], [ "https://en.wikipedia.org/wiki/Neutron_generator" ], [] ]
1mt0h2
why does someone need to 'come out'? and why isn't there an equivalent term for heterosexuals?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1mt0h2/eli5why_does_someone_need_to_come_out_and_why/
{ "a_id": [ "cccc8rp", "ccccb4w", "ccccd26" ], "score": [ 3, 2, 2 ], "text": [ "because everybody assumes that you're straight, so you need to announce that you are gay\n\nthis is... not a complex concept", "Homosexuals are still badly persecuted in most cultures and are in a f...
[]
[]
[ [], [], [ "http://en.wikipedia.org/wiki/Demographics_of_sexual_orientation" ] ]
3aaegk
are air molecules actually transparent?
we all know air molecules are too small to see... But in life usually we observe if something individually is to small to see, and you gather it in the tens of thousands... You end up with and object of some sort that is physically observable to see....why is this not our experience with air? This concept always has ev...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3aaegk/eli5are_air_molecules_actually_transparent/
{ "a_id": [ "csapra7", "csas92h" ], "score": [ 3, 3 ], "text": [ "because air is not dense enough to be physically observed. There is a lot of space between air molecules.\n\nIf you were to compress air to a great enough degree it would start to take the appearance of something, depending...
[]
[]
[ [], [ "https://en.wikipedia.org/?title=Liquid_oxygen" ] ]
7edtrz
why do companies (google, apple, etc.) that have billions of dollars worth of debt not pay it off when they have the money for it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7edtrz/eli5_why_do_companies_google_apple_etc_that_have/
{ "a_id": [ "dq49udh", "dq49urt", "dq4a22o", "dq4alha", "dq4c7ii", "dq4mabl", "dq4n153", "dq4nebv", "dq4nvf6", "dq4o6sb", "dq4plke", "dq4q43y", "dq4qkbx", "dq4qxzi", "dq4raae", "dq4rfru", "dq4t14m", "dq4tbny", "dq4uqpz", "dq4wyac", "d...
[]
[]
[ [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [] ]
493g61
why isn’t sampling fair use?
Please explain this to me. I'm talking about why when you sample a song, rework it into another song, why you have to pay fees and royalties, before you can sell the song. Yet YouTubers can use clips of films in their videos and still monazite it without having to ask for permission. I feel like they're the same thi...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/493g61/eli5why_isnt_sampling_fair_use/
{ "a_id": [ "d0oqhmk", "d0oqp28" ], "score": [ 2, 8 ], "text": [ "Fair use is sort of a nebulous concept. It's not strictly defined in law whether something is fair use or not, it's just a defense in court. So it's only fair use if you can convince a judge that it should be fair use.\n\nTh...
[]
[]
[ [], [] ]
3dcvk4
how do radio waves travel through deep space without being disrupted?
title
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3dcvk4/eli5_how_do_radio_waves_travel_through_deep_space/
{ "a_id": [ "ct3xo65", "ct427f0" ], "score": [ 2, 2 ], "text": [ "It's actually the ideal scenario. Physicists like to imagine radio waves travelling through empty space without gravity, other waves, something in the medium, etc. altering them somehow. The issue is picking them out after t...
[]
[]
[ [], [] ]
2cfwba
what happened to all the white/light colored asphalt roads? is there something different in the way roads are made now?
As a little kid in the early 80's, I used to see roads where the asphalt was almost white in color (this was in Florida). The surface was so light that they would paint the white dotted lines with black between the white sections to make them stand out. In the late 80's that section of road was resurfaced with fresh,...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2cfwba/eli5what_happened_to_all_the_whitelight_colored/
{ "a_id": [ "cjf1qoi", "cjf4l9a" ], "score": [ 2, 3 ], "text": [ "I could be wrong but it's most likely that the dark color has faded from sun exposure. ", "Asphalt is composed of \"aggregate\" which is a mix of gravel and sand that is stuck together with tarry petroleum stuff. \n\nPa...
[]
[ "http://www.fhwa.dot.gov/publications/publicroads/06jul/images/morena10.jpg" ]
[ [], [ "http://asphaltnews.com/common_problems.htm" ] ]
610y9n
why aren't sodas sold in variety packs?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/610y9n/eli5_why_arent_sodas_sold_in_variety_packs/
{ "a_id": [ "dfauk0v" ], "score": [ 11 ], "text": [ "If you really wanted cola and orange you would buy both. If manufacturers mixed the packs people may only buy one 6 pack of mixed instead of 2 packs of 6. This would lead to people buying and drinking less soda which the big corporations couldn'...
[]
[]
[ [] ]
38j92u
if copper is self sterilizing, why doesn't every hospital make door handles, and other frequently touched objects, with it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/38j92u/eli5_if_copper_is_self_sterilizing_why_doesnt/
{ "a_id": [ "crvfufr", "crviivq", "crvoaq4", "crvofsl", "crvrc1g", "crvrcpk", "crvusf3", "crvxsoc", "crvzcaz", "crw4ojw", "crwf8dl" ], "score": [ 44, 89, 6, 4, 2, 2, 2, 3, 3, 2, 2 ], "text": [ "Because copper oxidizes ...
[]
[]
[ [ "http://static.squarespace.com/static/50a464b1e4b06eecde87c1c6/5125745fe4b001d57f7b2654/51257561e4b0d69820155dc7/1361409389731/il_fullxfull.403866055_hdxc.jpg" ], [], [ "http://antimicrobialcopper.com/us/news-center/news/chilean-pediatric-hospital-installs-antimicrobial-copper.aspx", "http://www...
2evs4c
the internet situation in america
why is it so bad according to the commons?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2evs4c/eli5_the_internet_situation_in_america/
{ "a_id": [ "ck3exm0", "ck3f6wc" ], "score": [ 6, 4 ], "text": [ "America has so few companies offering internet service that there isn't much competition. Because companies like Comcast and TWC don't really have to worry about a competitor poaching customers through superior service (eith...
[]
[]
[ [], [] ]
3wliuf
what is the difference between a cheap speaker and an expensive speaker? if speakers are very simple machines, why do decent ones end up costing hundreds of dollars?
There are only 4 basic parts to a speaker (magnet, voice coil, cone, and enclosure/support.) The principle has been around for quite some time, and as far as electronic devices go, speakers are pretty simple. But you can tell the difference between a cheap $30 speaker and an expensive name brand speaker. What make...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3wliuf/eli5what_is_the_difference_between_a_cheap/
{ "a_id": [ "cxx3qau", "cxx3sp4" ], "score": [ 2, 4 ], "text": [ "First, quality materials mean quality components. Crappy magnets, badly-coiled, well, coils, bad wires and soldering joints and cabinets made out of particle board will not only produce poorer sound, but will also not last v...
[]
[]
[ [], [] ]
j2g6s
li5 - why does most of america have a huge 'car-culture' and other nations have 'rail-culture'?
I know there's lots of 'interests' and 'lobbyists' but Highways were a public project... did they rip up the Rail lines or have they been mostly untouched / decayed with lack of use? Other countries have bullet trains and more rail lines... how did either country type end up where they are?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/j2g6s/li5_why_does_most_of_america_have_a_huge/
{ "a_id": [ "c28kz47", "c28l0c2", "c28l2da", "c28l92g", "c28lbdc", "c28li67", "c28lr0h" ], "score": [ 6, 2, 9, 3, 3, 3, 2 ], "text": [ "America is very spread out. We have rail networks but they are outdated and as expensive and slower than using yo...
[]
[]
[ [], [], [], [], [ "http://en.wikipedia.org/wiki/1948_Tucker_Sedan", "http://en.wikipedia.org/wiki/Great_American_streetcar_scandal" ], [ "http://en.wikipedia.org/wiki/Great_American_streetcar_scandal" ], [ "http://en.wikipedia.org/wiki/American_dream", "http://en.wikipedia.org/wi...
bcmwt4
life expectancy of different organisms
My understanding is that generally larger organisms tend to live longer due to their slower metabolism. Is metabolism the only thing that comes in play? For example a Galapagos tortoise lives a hundred plus years and weighs a couple hundred pounds whereas a pig ways a couple hundred pounds and would only live a decade ...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bcmwt4/eli5_life_expectancy_of_different_organisms/
{ "a_id": [ "eks5ukt" ], "score": [ 2 ], "text": [ "_URL_0_\n\nI found this article really interesting. Thought you might like it, too :)" ] }
[]
[]
[ [ "https://www.npr.org/templates/story/story.php?storyId=12877984" ] ]
3jiq4q
why do "name brand" grocery items like milk and butter cost more than their generic counterparts when they usually come from the same producer?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3jiq4q/eli5_why_do_name_brand_grocery_items_like_milk/
{ "a_id": [ "cupjh0z" ], "score": [ 2 ], "text": [ "Name brand products have increased cost due to promotional advertising, packaging, design, all sorts of stuff. Generic counterparts don't have to pay nearly as much for those sorts of things. \n\nStores offer both for more freedom and range in ...
[]
[]
[ [] ]
6jfbf4
why does waking up during a thunderstorm feel so cozy?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6jfbf4/eli5why_does_waking_up_during_a_thunderstorm_feel/
{ "a_id": [ "dje0x0s", "dje111t" ], "score": [ 31, 2 ], "text": [ "Probably because we are trained from years of evolution to seek shelter during large storms. And when you awaken inside safe shelter under a warm blanket you suddenly feel at ease....", "It probably is because you and y...
[]
[]
[ [], [] ]
64y21u
how do condoms break through sex sometimes but you can pour pounds of water into one and it doesn't break ?
How do condoms not break when he does [this](_URL_0_) but break sometimes during sex ? Is it because of the friction ?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/64y21u/eli5_how_do_condoms_break_through_sex_sometimes/
{ "a_id": [ "dg5u87a", "dg5uhv0", "dg6a9xn" ], "score": [ 26, 44, 3 ], "text": [ " Different kind of frictions. Also, oil based things (baby oil, some massage oils, certain foods like chocolate sauce, some whipped creams- anything oil based) weakens latex which can make them break ...
[]
[ "https://www.youtube.com/watch?v=59L51yWUFiQ" ]
[ [], [], [] ]
8t88jc
why does art usually face left?
I'm learning to draw, and I've noticed a lot of figures are placed on the right of a canvas, and faced left. I tried flipping the images horizontally, and I find my focus shifts awkwardly. Is there a reason that makes this style more common? EDIT: For clarity, I'm not asking about how being right handed makes it easie...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8t88jc/eli5_why_does_art_usually_face_left/
{ "a_id": [ "e15lajl" ], "score": [ 9 ], "text": [ "It’s more common because the subjects face the light. The light in studios usually comes from the artists’ left (because it was easier for right handed people to work and see their work if their hand wasn’t casting a shadow). It outside, artists ...
[]
[]
[ [] ]
1su81u
in the animal kingdom males are usually adorned in a physical way to attract women. why is it the opposite in humans?
In most of nature female are the selectors and males have handicapping physical characteristics. In humans it is the opposite. Does this mean when it comes to human mating men are the selectors?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1su81u/eli5_in_the_animal_kingdom_males_are_usually/
{ "a_id": [ "ce1a9am", "ce1aaeh", "ce1ewcl" ], "score": [ 5, 5, 5 ], "text": [ "Men have plenty of visual characteristics. Chest hair, for example. Reproductively speaking humans are relatively equal, as are most primates.", "Humans are herd/social animals. If you look at anim...
[]
[]
[ [], [], [] ]
2z7wcx
can you permanently lose feeling in your arm after sleeping on it?
Sometimes I wake up in the middle of the night with my arm in an odd position, when I move it, it feels limp and numb. Once I've moved it I can feel the blood rushing back into my arm! If I slept on it for a really long time, would the circulation just stop?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2z7wcx/eli5_can_you_permanently_lose_feeling_in_your_arm/
{ "a_id": [ "cpgg9ze", "cpggkt1", "cpgid8l" ], "score": [ 3, 2, 2 ], "text": [ "The circulation doesn't stop unless your heart isn't beating or you have something clogging the pipes.\n\nIf you put enough pressure on your arm then yes there would no longer be circulation, this is se...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Compartment_syndrome" ], [] ]
2lwq4g
net netraulity, how is charging netflix more for their bandwidth any different than me being charged for more bandwidth?
my ISP charges me different rates based on how fast I want to download and upload things. Is this not what the ISP is trying to do with huge data providers like Netflix? As an end user, my business with my ISP has always been, "you want more speed, pay us more". I thought even Netflix had to abide by this model... W...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2lwq4g/eli5_net_netraulity_how_is_charging_netflix_more/
{ "a_id": [ "clyvj4f", "clyvp8h" ], "score": [ 2, 5 ], "text": [ "Netflix does pay their own service providers for their transmission. Net neutrality issues come up [when ISPs want to charge Netflix to deliver messages Netflix already paid to send and customers paid to have delivered](_URL...
[]
[]
[ [ "https://www.youtube.com/watch?v=NAxMyTwmu_M&list=UUOGeU-1Fig3rrDjhm9Zs_wg" ], [] ]
3sgx77
is inflation ever going to stop? will chocolate bars that cost $1.50 today cost $1000 someday?
Even in the last 10 years I've seen many prices inflate almost 50%. Is inflation constant and never ending?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3sgx77/eli5_is_inflation_ever_going_to_stop_will/
{ "a_id": [ "cwx4nmr", "cwx68f4" ], "score": [ 2, 4 ], "text": [ "You’re confusing price *movements* with price *inflation*. There has not been 50% inflation in the last ten years (at least, not in the developed countries), but the prices of some goods rice and fall more erratically becau...
[]
[]
[ [], [] ]
359rgr
inertia in space
In space, do larger objects require more energy/force to be moved/change their direction. Comparing the apollo capsule to the space shuttle. The space shuttle could only enter low earth orbit and wasn't capable of going further (i.e) to the moon. Did the space shuttle require more force to change direction because it w...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/359rgr/eli5_inertia_in_space/
{ "a_id": [ "cr2czda" ], "score": [ 2 ], "text": [ "The basic principle of Force = Mass x Acceleration applies here. The heavier your object, the more force needs to be applied to make it change its velocity in any way (be it slowing down, speeding up, or changing directions). Kinetic energy, the ...
[]
[]
[ [] ]
1j8ce8
reddit lingo
Such as DM;SP... I cannot think of others, but feel free to add to the list.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1j8ce8/eli5_reddit_lingo/
{ "a_id": [ "cbc4a69", "cbc4aub" ], "score": [ 3, 2 ], "text": [ "TL;DR = Too long, Didn't Read\n\nDM;HS = Doesn't Matter, Had Sex\n\nTIFU = Today I Fucked Up\n\nAMA = Ask Me Anything\n\nYSK = You Should Know\n\nLPT = Life Pro-Tip", "TL;DR - \"too long; didn't read\"- when someone type...
[]
[]
[ [], [] ]
5xljj2
what is the advantage of doctors wearing lab coats in hospitals and clinics?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5xljj2/eli5_what_is_the_advantage_of_doctors_wearing_lab/
{ "a_id": [ "dej0umv", "dej0uo0" ], "score": [ 3, 2 ], "text": [ "When kids barf it doesn't get on their clothes, and it looks more professional than scrubs. Big handy pockets are also great for women doctors because women's clothes don't have pockets.", "It serves as a kind of unifor...
[]
[]
[ [], [] ]
3z0jte
couldn't you just get around the berlin wall by going to the countryside?
I know this sounds silly but the wall is only so long and surely you could get outside the city in the eastern half and cross elsewhere.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3z0jte/eli5_couldnt_you_just_get_around_the_berlin_wall/
{ "a_id": [ "cyi949q", "cyi9wpb", "cyibhtc" ], "score": [ 38, 8, 23 ], "text": [ "The Berlin Wall entirely surrounded West Berlin. It didn't just divide Berlin in two. Berlin was deep inside Eastern Germany. ", "Berlin was deep in East Germany. West Berlin was a small enclave ...
[]
[]
[ [], [], [] ]
6ed4h4
why do animal brains tend to operate far more efficiently than even the best computers?
Brains occupy a low volume and use very little energy compared to computers. How is this possible? What's preventing computers from becoming more efficient than the brain?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6ed4h4/eli5_why_do_animal_brains_tend_to_operate_far/
{ "a_id": [ "di9fjov", "di9foav", "di9gia4", "di9gq94", "di9jl26" ], "score": [ 2, 5, 8, 3, 15 ], "text": [ "Brains are better than computers at complex, abstract things like pattern recognition. Computers are better than brains at logical tasks, like calculating t...
[]
[]
[ [], [], [], [], [] ]
apvp86
can 2 light skinned people have a baby that is darker then both of them?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/apvp86/eli5_can_2_light_skinned_people_have_a_baby_that/
{ "a_id": [ "egbh0tj" ], "score": [ 2 ], "text": [ "If there is darker skin somewhere in your immediate family then it is possible. Kind of like how some people are born with red hair or blue eyes even if their parents don’t" ] }
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[ [] ]
4cwa94
how does a mechanical watch know how many days there are in a month? and what about february?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4cwa94/eli5_how_does_a_mechanical_watch_know_how_many/
{ "a_id": [ "d1lwbxf", "d1lwh37", "d1lwhfw", "d1lwidd", "d1lwmgm" ], "score": [ 44, 2, 4, 17, 43 ], "text": [ "A basic mechanical watch with just a day of month counter will generally assume that there are 31 days in a month and will have to be manually reset on the...
[]
[]
[ [], [], [], [ "http://www.iwc.com/en/experiences/flying-high-with-big-date-and-month-displays/" ], [ "http://forums.watchuseek.com/f2/how-does-perpetual-calendar-work-191633.html" ] ]
1ks4tr
divorce rates
Okay, everyone always says half of all marriages end in divorce. 1. I always assumed they were talking about the US, but never verified it because 2. ...I've never seen the citation for this statistic. 3. Here's my big question. Only people who get divorced remarry. People who don't ever divorce can't. How much of ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ks4tr/eli5_divorce_rates/
{ "a_id": [ "cbs2tpc" ], "score": [ 2 ], "text": [ "Half of all marriages, you are on the right track. Well fewer than half of all people end up divorced, because you have the Donald Trumps of the world getting married six or seven times driving up percentage. " ] }
[]
[]
[ [] ]
f0jqkf
why do 1 in 3 americans have high blood pressure?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/f0jqkf/eli5_why_do_1_in_3_americans_have_high_blood/
{ "a_id": [ "fgujwun" ], "score": [ 2 ], "text": [ "High blood pressure is based many different factors including diet and lifestyle. High salt/low potassium diets typical of the American diet leads to retention of water and increased blood volume that increases pressure. Being overweight/obese (...
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[]
[ [] ]
fkkx1i
where do all the locusts swarms start?
Okay so I noticed in Saudi Arabia and other parts of the word there are an excessive amount of locusts swarming the desert, and I just wanna know where those locusts come from in such a short amount of time?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fkkx1i/eli5_where_do_all_the_locusts_swarms_start/
{ "a_id": [ "fktbbll", "fktbq79" ], "score": [ 2, 6 ], "text": [ "They breed pretty fast and all the locusts non a huge area converge together to make a swarm.", "Sometimes after a period of a lot of rain which leads to plenty of food, some kinds of grasshoppers will have their numbers...
[]
[]
[ [], [] ]
67rurj
what is going on with the "youtubeapocolypse" and what can we as the average viewer do about it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/67rurj/eli5_what_is_going_on_with_the_youtubeapocolypse/
{ "a_id": [ "dgsqzg6" ], "score": [ 4 ], "text": [ "Youtube has given the option to advertisers to choose what type of video's they want to show their ads on. A lot of video's are being marked as rude/offensive while not much is happening which causes many content creators to not get any ad revenu...
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[ [] ]
5r43yw
why do we experience headaches and stomachaches when we are stressed sometimes?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5r43yw/eli5_why_do_we_experience_headaches_and/
{ "a_id": [ "dd4dn0r" ], "score": [ 2 ], "text": [ "Stress causes your flight or fight reflex to kick in. This raises blood pressure and releases adrenaline. Both of these cause your symptoms. " ] }
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[]
[ [] ]
dgdsct
how does the brain distinquish between happy, sad or angry music/sounds?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/dgdsct/eli5_how_does_the_brain_distinquish_between_happy/
{ "a_id": [ "f3b06rq", "f3b4rc8" ], "score": [ 5, 2 ], "text": [ "Yes, music can sound sad without any words or direct associations. Most music is founded in the sounds of language. That's why it's so expressive. So a piece that sounds like someone saying something sad might make you feel ...
[]
[]
[ [], [] ]
36hqlk
why do planets, systems, and galaxies revolve and orbit in a certain direction and what caused them to initially do so? (x-post from /r/askscience)
Furthermore, does this coincide with the theories of the Universe moving around a continuous loop? If so, could it be theorized that the dark matter of the Universe itself is a fluid, with galaxies, systems, and planets representing particles and orbital direction is caused by friction between dark matter and galaxies ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/36hqlk/eli5_why_do_planets_systems_and_galaxies_revolve/
{ "a_id": [ "cre1wif" ], "score": [ 2 ], "text": [ "Not everything in them does orbit in one direction (at least on a solar system scale), the direction is pretty arbitrary, and the fact that it's flat is just what happens when the matter comes together with galaxies and solar systems etc. \n\n\nT...
[]
[]
[ [ "https://www.youtube.com/watch?v=tmNXKqeUtJM" ] ]
83lek3
why does crying and being sad make you so tired? [psychology]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/83lek3/eli5_why_does_crying_and_being_sad_make_you_so/
{ "a_id": [ "dvj6tog" ], "score": [ 59 ], "text": [ "Emotional stress and trauma is both physically and mentally draining. Being overwhelmed in some cases can lead to blackouts. Tears, for example, obviously use water and potassium-so excessive crying can lead to dehydration. " ] }
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[ [] ]
9s0x2z
why is freshly roasted coffee better than pre-packaged coffee?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/9s0x2z/eli5_why_is_freshly_roasted_coffee_better_than/
{ "a_id": [ "e8l8p5d", "e8l8uhp" ], "score": [ 19, 8 ], "text": [ "There are several overlapping causes. First, after roasting, coffee outgasses for several days. Generally, you want to wait 24 hours after roasting so as not to have too much of these gasses. Then, many of the delicious ...
[]
[]
[ [], [ "https://www.livescience.com/2737-surprising-impact-taste-smell.html", "https://www.coffeeandhealth.org/all-about-coffee/aroma-and-flavour-composition-of-coffee/", "https://en.wikipedia.org/wiki/Volatility_(chemistry)" ] ]
6sf511
why do microwaves make my fish sticks mushy?
Not just fish sticks, but today I'm eating fish sticks and don't have access to an oven to reheat them and make them tasty and crispy, and I'm curious why we must suffer with microwaves making our food mushy.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6sf511/eli5_why_do_microwaves_make_my_fish_sticks_mushy/
{ "a_id": [ "dlc8h25", "dlcahym", "dlcc7ap" ], "score": [ 5, 3, 2 ], "text": [ "Microwaves heat food mostly by exciting the water molecules in it. Water can only be heated to 100C before it becomes water vapor. So, microwaves generally don't heat your food beyond that temperature. ...
[]
[]
[ [], [], [] ]
4sie3d
the theory that black holes can be used for time travel.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4sie3d/eli5_the_theory_that_black_holes_can_be_used_for/
{ "a_id": [ "d59iepw", "d59jouo", "d59jp9x", "d59jten", "d59k18v", "d59lf9a", "d59m2v0", "d59oo0c", "d59pszr", "d59qzk3", "d59rleq", "d59s0js", "d59sqrw", "d59tapc", "d59tgbl", "d59wvzw", "d59xm8o", "d59yty5", "d59ywle", "d59z862", "d...
[]
[]
[ [], [ "https://en.wikipedia.org/wiki/Closed_timelike_curve" ], [], [], [], [], [], [ "https://www.bing.com/videos/search?q=imagining+the+10th+dimension&&view=detail&mid=70BEB0AD4CAFBBD08B0C70BEB0AD4CAFBBD08B0C&FORM=VRDGAR" ], [], [], [ "http://www.physicsoftheuniv...
5aqsr8
what is congress exactly?
As a Brit i hear people talk about Congress and how they're doing this and that but what exactly is Congress? Is it similar to our House of Lords?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5aqsr8/eli5what_is_congress_exactly/
{ "a_id": [ "d9iinht", "d9iitga" ], "score": [ 7, 6 ], "text": [ "Congress = Parliament\n\nSenate = House of Lords\n\nHouse = House of Commons", "Congress is the US legislative branch. It's the equivalent to the British Parliament. Like Parliament, it has two chambers: the Senate and t...
[]
[]
[ [], [] ]
26xazy
why do grocery carts slowly turn as you push them?
This always annoys me. I would like to know if there's a specific reason that grocery carts always seem to curve left as you push them or if it's just a design flaw.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/26xazy/eli5_why_do_grocery_carts_slowly_turn_as_you_push/
{ "a_id": [ "chvcjvp", "chvcq6m", "chvcqr2" ], "score": [ 5, 4, 5 ], "text": [ "Not all of them, but most of them are broken ", "The front wheels can turn so that when you push it in any direction it will turn as you wish... if you just shove it forward, there's nothing actuall...
[]
[]
[ [], [], [] ]
2t1mbb
why are all adverts on porn sites of such poor quality? [nsfw]
Sure, there are a whole bunch of negative connotations associated with advertising on a porn site, but I'm surprised that the sheer volume of traffic hasn't attracted SOME kind of legitimate advertising. Assuming you watch porn even semi-regularly, think of the number of times you've seen misspelled, poorly-photoshopp...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2t1mbb/eli5_why_are_all_adverts_on_porn_sites_of_such/
{ "a_id": [ "cnuvisa", "cnv34cf" ], "score": [ 8, 2 ], "text": [ "Sometimes advertisers purposely make their ads look like they're written by non-english speakers. I get spam on a daily basis with people pretending to be \"a young russian lady living in the boonies of ukraine. I love meeti...
[]
[]
[ [], [] ]
5g9kya
why speeding up the video on youtube doesn't change the pitch but when the same thing is done using some other software the audio starts sounding like an alien?
Edit : Its how instead of why.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5g9kya/eli5why_speeding_up_the_video_on_youtube_doesnt/
{ "a_id": [ "daqi66y", "daqnufj", "daqrg1c", "daqtohw" ], "score": [ 16, 2, 2, 16 ], "text": [ "Sound is in the form of waves. Lower pitch is longer waves and higher pitch is shorter waves. When you speed up a piece of sound the time between the waves gets smaller and you e...
[]
[]
[ [], [], [], [ "http://i.imgur.com/UfIvg6L.jpg", "http://i.imgur.com/waOaLeP.png", "http://i.imgur.com/BNeebJA.jpg" ] ]
vvhnh
what is poe's law?
I've been looking up definitions online and can't seem to wrap my head around it. Can anyone give me a simpler explanation in more layman's terms with an example?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/vvhnh/eli5_what_is_poes_law/
{ "a_id": [ "c57z7ro" ], "score": [ 36 ], "text": [ "Poe's Law basically says that, from a rational viewpoint, it's very difficult to tell the difference between someone parodying an extremist view, and someone who actually practices that view.\n\nA prime example of Poe's Law in effect is Stephen ...
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[]
[ [] ]
3upa22
second amendment: what is well - regulated?
As a European, it is hard to grasp the right to bear arms. Without blaming the US for having the Second Amendment, I just want to understand it. President Obama says he wants to do something about gun violence, but his chances are not that high (I guess). The Second Amendment says 'a well-regulated millitia'. What do...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3upa22/eli5_second_amendment_what_is_well_regulated/
{ "a_id": [ "cxgo0jv", "cxgo196", "cxgo5xs", "cxgo6uy", "cxgsnnk", "cxgv77b", "cxh67fv" ], "score": [ 2, 9, 3, 4, 13, 2, 2 ], "text": [ "There is no single definition. People have been debating it for a LONG time, and will for as long as the document...
[]
[]
[ [], [], [], [], [], [ "https://en.wikipedia.org/wiki/National_Firearms_Act#Categories_of_firearms_regulated", "https://en.wikipedia.org/wiki/Gun_Control_Act_of_1968#Prohibited_persons", "http://www.pewresearch.org/fact-tank/2015/04/17/despite-lower-crime-rates-support-for-gun-rights-increases/...
3y377c
if cheetah extinction is considered inevitable due to lack of genetic diversity, then wouldn't any animal who reached low populations be doomed for extinction for same reason?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3y377c/eli5_if_cheetah_extinction_is_considered/
{ "a_id": [ "cya2ujd", "cyaoq93" ], "score": [ 157, 2 ], "text": [ "Yes, there is a minimum population below which it is impossible to recover without external aid. \n\nOn a related note, there is a minimum birth rate for a country. Below that rate the country's population will collapse...
[]
[]
[ [], [] ]
4ecx86
why eye contact feels so intense?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4ecx86/eli5_why_eye_contact_feels_so_intense/
{ "a_id": [ "d1z8l1i" ], "score": [ 3 ], "text": [ "Probably a primal reaction to a possible threat, this is why you don't stare down primates(or smile i think, which is a sign of aggression because youre showing your teeth?). This could be entirely wrong lol" ] }
[]
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[ [] ]
a9va6b
what creates the "burn feeling" from touching small open wounds (e.g. from ripping of skin at the finger)?
I always wondered what the pain from touching open wounds originates from. I understand that missing skin can't be good for your body, but what exactly is "below" the outer skin surface? Especially: Why does it BURN when anything (also water etc.) touches that wound? & #x200B; EDIT: Title's "of" should be "off".
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a9va6b/eli5_what_creates_the_burn_feeling_from_touching/
{ "a_id": [ "ecmucsh", "ecn5hdq" ], "score": [ 15, 14 ], "text": [ "When you cut your finger, your exposing your dermis, the layer of skin under your epidermis, (top layer of skin). You are exposing nerves that were under the skin unbothered. Now they are touching air, water, germs, finger...
[]
[]
[ [], [] ]
2uql00
what are the physical signs of a clinically dead human that indicate they are beyond saving via cpr or defibrillation
Let's say a disaster happens and life-saving resources are scarce. Rescue workers and paramedics must choose which clinically dead victims they apply their time and strength on. What are the signs that indicate there's is/isn't a chance?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2uql00/eli5_what_are_the_physical_signs_of_a_clinically/
{ "a_id": [ "coar8z4", "coardbt", "coaufal", "coawnzr", "coax56f", "coaz82x" ], "score": [ 48, 24, 6, 2, 3, 2 ], "text": [ "One of the biggest situations that every emergency personnel dreads is having to play god.\n\nSituations you are talking about are wha...
[]
[]
[ [], [ "http://en.wikipedia.org/wiki/Defibrillation" ], [], [], [], [] ]
4a71cv
why do commercial airlines rarely have accidents whereas private jets and planes are frequently involved in accidents?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4a71cv/eli5_why_do_commercial_airlines_rarely_have/
{ "a_id": [ "d0xwlzl" ], "score": [ 3 ], "text": [ "Because the commercial airlines usually have the stricter training requirements, the higher cutoff point and their pilots fly even more regularly." ] }
[]
[]
[ [] ]
11mix3
what is so bad about 'web scraping?'
It was briefly mentioned in a lecture and it sounds rather interesting. Why are people mostly opposed to it? How can this damage the business?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/11mix3/what_is_so_bad_about_web_scraping/
{ "a_id": [ "c6nrm0x", "c6nul96" ], "score": [ 2, 2 ], "text": [ "_URL_0_\n\nIt is usually against the terms of service for many search engines because you are essentially bypassing their website, and therefore getting the same information without having been shown the ads that make the we...
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[]
[ [ "http://en.wikipedia.org/wiki/Web_scraping#Legal_issues" ], [] ]
42v3my
why do some coins have groove along the circumference, while others are completely smooth?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/42v3my/eli5_why_do_some_coins_have_groove_along_the/
{ "a_id": [ "czdccoc", "czdccvc", "czdcec6", "czdcj9k" ], "score": [ 14, 4, 3, 3 ], "text": [ "The groves are a carryover from the time when coins were made of metal that had its own intrinsic value. People had a habit of shaving off a bit of every coin that passed through ...
[]
[]
[ [], [], [], [] ]
d1flxm
why does the tension in tennis racquet strings reduces over time? why does the strings disorient while hitting the ball?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/d1flxm/eli5_why_does_the_tension_in_tennis_racquet/
{ "a_id": [ "ezl4lfs" ], "score": [ 9 ], "text": [ "They get stretched beyond the maximum elasticity threshold and get permanently deformed. If you see a slow mo of a racquet hitting a tennis ball, the force is insanely high" ] }
[]
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[ [] ]
3rhrw4
how do modern projectors work ?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3rhrw4/eli5_how_do_modern_projectors_work/
{ "a_id": [ "cwobgsj" ], "score": [ 6 ], "text": [ "It depends on the kind.\n\n/u/ModeratorsAreDouches touched on one kind. LCD projectors are a technology that first appeared in the 90's, and they're very good. \n\nAnother kind uses a DLP matrix instead. A DLP matrix is a grid that has a very ...
[]
[]
[ [] ]
a2mz4s
why does chicago get so much more snow than nyc?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/a2mz4s/eli5_why_does_chicago_get_so_much_more_snow_than/
{ "a_id": [ "eazpg3x", "eb0a13t" ], "score": [ 4, 2 ], "text": [ "_URL_0_\n\nChicago is on the edge of Lake Michigan. Cold air comes down from Canada, picking up all the moisture from the lake and dumps it on the city.", "Because Chicago is colder.\n\nIt's not because Chicago gets mor...
[]
[]
[ [ "https://en.wikipedia.org/wiki/Lake-effect_snow" ], [ "https://drought.unl.edu/archive/climographs/NewYorkCityANC.htm", "https://drought.unl.edu/archive/climographs/ChicagoANC.htm" ] ]
3wz3un
why is it common to "fall through the world" in video games?
I'm a programmer, but I know nothing about game development. It would seem to me that making sure someone can't fall through a floor or what not should be trivial, so what's the deal?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3wz3un/eli5_why_is_it_common_to_fall_through_the_world/
{ "a_id": [ "cy020lr" ], "score": [ 4 ], "text": [ "For simplicity purposes, the \"location\" of a character might simply be a point with 3-dimensional coordinates. The floor is a collection of polygons that all touch each other. Determining whether or not your character is \"on the ground\" is si...
[]
[]
[ [] ]
79j3ok
why do crabs change shells?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/79j3ok/eli5_why_do_crabs_change_shells/
{ "a_id": [ "dp2bs7r" ], "score": [ 3 ], "text": [ "Same reason you need to change clothes - you grow larger and larger, and old stuff doesn't fit you anymore.\n\nEventually growth slows down a ton and you don't need to change very often." ] }
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[ [] ]
3phft3
when i'm sick, why does it smell and taste like there's a handful of dirty pennies in the back of my throat?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3phft3/eli5_when_im_sick_why_does_it_smell_and_taste/
{ "a_id": [ "cw6apnt", "cw6awrs", "cw6ddav" ], "score": [ 2, 2, 2 ], "text": [ "When I'm sick I can smell iron over everything. You can put a scented candle right in front of me and it smells like metal", "Read pennies as penises...was so confused. \n\nUmmmm, altered taste buds...
[]
[]
[ [], [], [] ]
mw3x0
how can the value of things like currencies and stocks go up and down in a short time?
I'm someone with no background in economics. I've always been puzzled about how news channels and newspapers can always give you the exact price of say, the US dollar, or an Apple share. How can these values change so rapidly? More importantly, how are these changes calculated? Who calculates them?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/mw3x0/eli5_how_can_the_value_of_things_like_currencies/
{ "a_id": [ "c34atqu", "c34atqu" ], "score": [ 3, 3 ], "text": [ "The value of something is the price that people are willing to pay for it.\n\nLets say you wanted to know the price of apples in a market. You can go and observe watch someone buying an apple for $1. You can then report in...
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[ [], [] ]
blqfbe
why do mobile websites load, and load again, and change their spacing again? oops, and there's an ad. better jump the screen around a bit.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/blqfbe/eli5_why_do_mobile_websites_load_and_load_again/
{ "a_id": [ "emqhn0j", "emqpc5y", "emqpmkn", "emr8uuo" ], "score": [ 19, 22, 4, 4 ], "text": [ "The page is just loading. Some parts of a page, like text will load faster while videos and images and ads take slightly longer.", "Can't speak for other developers, but in...
[]
[]
[ [], [], [], [] ]
22bfi4
do our eyes really see everything "upside down"?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/22bfi4/eli5_do_our_eyes_really_see_everything_upside_down/
{ "a_id": [ "cgl5odw", "cgl5rki" ], "score": [ 4, 2 ], "text": [ "The lens of your eye inverts the image when light passes through it, your brain uninverts the signal for you to use.", "Yes, that's true. The image projected on your retina is upside-down, which your brain then flips.\n\...
[]
[]
[ [], [] ]
8u3hhg
- why does applying two layers of spf 30 sunblock give you less protection than one layer of spf 60 sunblock?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8u3hhg/eli5_why_does_applying_two_layers_of_spf_30/
{ "a_id": [ "e1cdzc7", "e1ctp06" ], "score": [ 6, 5 ], "text": [ "The chemicals coat/soak into the skin, at least certain types. Zinc-based sunblock that continues to be visible (white) and doesn’t “rub in” would be an exception.\n\nSo you’re not necessarily creating a double-thickness lay...
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[ [], [] ]
ktfef
hand dominance
Why do we have it? Are we the only organisms to have it?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/ktfef/eli5_hand_dominance/
{ "a_id": [ "c2n3kx2", "c2n3kx2" ], "score": [ 3, 3 ], "text": [ " > Why do we have it?\n\nThere was some evolutionary advantage to specializing the functions of our hands. The \"smart\" hand could be more clever and quicker than the other one. With a smarter hand to manipulate stuff, we ...
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[]
[ [], [] ]
8p8tk2
why do some programs sort their numbers like 1,10,11,2,3,4,5,6,7,8,9 instead of 1,2,3,4,5,6,7,8,9,10,11?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/8p8tk2/eli5_why_do_some_programs_sort_their_numbers_like/
{ "a_id": [ "e09bt5q", "e09bukm", "e09buz5", "e09bv8j", "e09cfpw" ], "score": [ 2, 5, 39, 3, 2 ], "text": [ "Think of the series of books sorted alphabetically. You begin to sort the books by the first letter of the title. If there is more than one book starting wit...
[]
[]
[ [], [], [], [], [] ]
3zh7xm
why the west is friends with something like saudi arabia but always hostile towards russia
On paper, it's all about democracy, human rights etc, but why being friends with medieval country? Not only Russia, but Iran, China and other countries.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3zh7xm/eli5_why_the_west_is_friends_with_something_like/
{ "a_id": [ "cym3n9z", "cym3yss", "cym7651" ], "score": [ 15, 3, 8 ], "text": [ "I don't want to be *that* guy, but honestly it's oil. Saudi Arabia has access to a valuable material and Russia's oil access doesn't meet our standards. Not to mention the whole Cold War so tensions ar...
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[]
[ [], [ "https://www.census.gov/foreign-trade/balance/c4621.html", "https://en.wikipedia.org/wiki/List_of_countries_by_oil_production" ], [] ]
33sp25
why doesnt oman have the same issues/crisis its southern neighbor yemen has?
its population is also a fraction of yemen despite being from the same geographic location.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/33sp25/eli5_why_doesnt_oman_have_the_same_issuescrisis/
{ "a_id": [ "cqo3x6k", "cqo4cvz" ], "score": [ 4, 2 ], "text": [ "The same reason a lot of countries in the region don't have the same issue as Yemen has. It's a different country with a much more popular leader in Sultan Qaboos who has created a stable country with a relatively great econ...
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[ [], [] ]
bqfgp2
why are the vast majority of fruits around the same, handheld size?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/bqfgp2/eli5_why_are_the_vast_majority_of_fruits_around/
{ "a_id": [ "eo3ylmh", "eo40v2n", "eo4tb7w" ], "score": [ 13, 6, 3 ], "text": [ "They are not. Most fruits are small, but the one we have bred for human consumption are the ones you usually think about.", "Artificial selection. Alot of the fruit you see is the result of people ...
[]
[]
[ [], [], [] ]
apn10e
why can't we engineer or or artificially increase the amount of t-cells a person has to combat cancer?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/apn10e/eli5why_cant_we_engineer_or_or_artificially/
{ "a_id": [ "eg9pzwq", "eg9q9qr" ], "score": [ 9, 2 ], "text": [ "We can. And we did. It's called CAR-T cell therapy. ", "From a technological standpoint, just this past decade were we finally able to create our own human cells, t-cells are the next step. I’m pretty sure that T-cells d...
[]
[]
[ [], [] ]
4634f0
why does walking on sand make your feet hurt?
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4634f0/eli5_why_does_walking_on_sand_make_your_feet_hurt/
{ "a_id": [ "d0203ue", "d0208je" ], "score": [ 8, 4 ], "text": [ "Because you are engaging a whole set of muscles to stay balanced that you don't often engage when walking on a stable surface. If you were to only walk on sand, you'd get \"fit\" and you wouldn't have this experience as muc...
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[ [], [] ]
7xn2ie
what happens when you die pregnant?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/7xn2ie/eli5_what_happens_when_you_die_pregnant/
{ "a_id": [ "du9k88z", "du9kgxo", "du9khfr" ], "score": [ 2, 2, 2 ], "text": [ "if the baby is developed enough to survive on it's own or with human/machine assistance then a c section can be performed to save the baby. if not then the baby dies with the mother. assuming that the...
[]
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[ [], [], [] ]
4br22w
why does rust form from moisture? and how does moisture and rust break down incredibly strong steel?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4br22w/eli5_why_does_rust_form_from_moisture_and_how/
{ "a_id": [ "d1bm0v8", "d1bqzx8" ], "score": [ 6, 2 ], "text": [ "It's a simple chemical reaction that water, and in particular, salty water, help with. And it breaks down iron in the same way that a campfire breaks down wood - chemically.\n\nSteel and iron contain iron molecules, which un...
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[]
[ [], [ "http://www.amazon.com/Rust-The-Longest-Jonathan-Waldman/dp/1451691599" ] ]
am33sy
us pulls out from treaty with russia that's been centerpiece of nuclear arms control since cold war.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/am33sy/eli5_us_pulls_out_from_treaty_with_russia_thats/
{ "a_id": [ "efix3bw" ], "score": [ 2 ], "text": [ "The Russians were not abiding by the treaty, according to the US. So, after 6 months of notice, the US is moving ahead with weapons deployments that were stopped when the treaty was signed back in the 1980s." ] }
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[ [] ]
2xjxon
as there're so many good, cheaper cable manufacturers out there, how can apple still sell its lightning cable?
Look at Belkin or Moshi, for example. Their cables are durable as hell compared to the official Apple Lightning cable that only lasts like 3 months. They're around the same price or even cheaper, and they even display in the ver Apple Store. How can they still sell the official cable? Why do people buy it over the toug...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2xjxon/eli5_as_therere_so_many_good_cheaper_cable/
{ "a_id": [ "cp0qvyk" ], "score": [ 4 ], "text": [ "Many people believe that the higher price something is, the better it is, regardless of the actual technical merits involved. Apple has name recognition with Apple, and not everyone has heard of Moshi. Other than sounding like a pokemon, many h...
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[]
[ [] ]
4i79xk
why do wrecking balls, and possibly other wrecking equipment spray water from the top?
I'm watching a building get wrecked and the wrecking ball is spraying water. Why? I assume because part of it works via hydraulics.
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4i79xk/eli5_why_do_wrecking_balls_and_possibly_other/
{ "a_id": [ "d2voki5", "d2vokrv", "d2voky9" ], "score": [ 2, 7, 18 ], "text": [ "If you mean machines that cut into hard surfaces (such as stone saws, drills, etc.,) it is to lubricate the cutting surface and cool it. Otherwise, the cutting edge will heat and weaken. ", "It m...
[]
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[ [], [], [] ]
fwa9w9
how the video app zoom is dangerous/not secure
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/fwa9w9/eli5_how_the_video_app_zoom_is_dangerousnot_secure/
{ "a_id": [ "fmndco7", "fmnf37o" ], "score": [ 2, 3 ], "text": [ "There is no security for your email or account attached to it. So if someone wanted to, with Zoom, they can get into your videos and cloud storage.", "Zoom doesn't have end-to-end encryption. A bank web page has end-to...
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[ [], [] ]
6cf7nj
how do cameras take videos at 3000-4000 frames per second, while still having a shutter speed of 1/100?
Hi. So I just saw this gif on the front page: _URL_0_. (It's the ladybug unfolding its wings) I've dabbled in some amateur videography and generally I've been told to maintain my shutter speed at 1/30 so that it lines up somewhat close to the standard frame rate of 24 fps. But how does a camera take these things? How...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/6cf7nj/eli5_how_do_cameras_take_videos_at_30004000/
{ "a_id": [ "dhu7leg", "dhu7myl" ], "score": [ 4, 2 ], "text": [ "That's not the shutter speed, it's the effective speed of the video. Since it was recorded at 3000fps and played back at 30fps, we're seeing events at 1/100 of the original speed.", "Sped up by a factor of 100 so that 30...
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[ "https://i.imgur.com/9TUUzFA.gifv" ]
[ [], [] ]
4qtgxr
why do clothes dried outside on a line in the sun smell so much better than clothes from a dryer?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4qtgxr/eli5_why_do_clothes_dried_outside_on_a_line_in/
{ "a_id": [ "d4vsvn7" ], "score": [ 3 ], "text": [ "**Cause**: The damp environment inside a washing machine tends to cause a buildup of mildew, especially if you use a lot of [soap](_URL_1_). When you dry clothes outside, [ultraviolet rays](_URL_2_) naturally kill most of the mildew. However, whe...
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[ [ "http://laundry.reviewed.com/features/why-your-washing-machine-smells-and-how-to-clean-it", "http://www.realsimple.com/home-organizing/cleaning/laundry/mildew-smell-washing-machine", "http://edis.ifas.ufl.edu/pdffiles/HE/HE63300.pdf" ] ]
3577lq
why do i have to close unrelated apps/programs when installing an app/program update on my mac and/or pc?
I just received an update for Microsoft Word on my Macbook Air, and it forced me to close Safari. I don't see the direct correlation between Safari & Word, so I was just wondering why I should have to close one to update the other.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3577lq/eli5_why_do_i_have_to_close_unrelated/
{ "a_id": [ "cr1obxg", "cr1u7ng" ], "score": [ 3, 2 ], "text": [ "Internet browsers can often use plugins from other software/suites e.g. Microsoft Word/office. If the browser is open during the update (i.e. the plug-in is busy) then this might cause a failure to update microsoft office co...
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5ybshi
why is each coin flip 50% heads or tails, regardless of the x flips that came before?
I am having a debate with a couple of friends, and one of them does not believe that after 10, 100, or 1000 coin flips that all happen to consecutively land on heads, the next coin flip immediately after is independent from the ones that were executed earlier. Furthermore, he claims that after X heads in a row, it is...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/5ybshi/eli5_why_is_each_coin_flip_50_heads_or_tails/
{ "a_id": [ "deor3hx", "deor7i3", "deorab0", "deorafs", "deorihk", "deos1wi", "deotlch", "deounhf", "depenhh" ], "score": [ 3, 5, 2, 2, 2, 3, 2, 2, 2 ], "text": [ "Because each flip is an entirely independent event -- what happened on...
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[ [], [], [], [], [], [], [ "https://en.m.wikipedia.org/wiki/Gambler's_fallacy" ], [], [] ]
3ti0p8
why are so many more olympic athletes caught using steroids, compared with other sports tournaments such as the world cup or the nba?
It seems like during every Olympics, there is a major drug scandal with many players being stripped of medals and getting banned. How come this happens much less frequently in other major sports tournaments? Is the Olympics particularly 'dirty' in this regard, or does the Olympics simply have the most stringent drug te...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3ti0p8/eli5_why_are_so_many_more_olympic_athletes_caught/
{ "a_id": [ "cx6btnp", "cx6c4ah" ], "score": [ 3, 2 ], "text": [ "There is a number of factors at play here:\n\n**Individual vs team sports**\nThe Olympics are the world's biggest event for individual sports (athletics, wrestling, gymnastics, etc.) while most team sports have more \"import...
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ccery5
how is it possible for a 700 trillion dollar derivitive bubble to exist?
I just read about the 700 trillion dollar exposure in the derivitive market, but I cant wrap my head arhound how such an absurd amount of debt could exist. The entire U.S. GDP was around 19 trillion last year, so how could a literally unpayable amount of debt even exist? Secondly if this bubble does burst someday what...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/ccery5/eli5_how_is_it_possible_for_a_700_trillion_dollar/
{ "a_id": [ "etmf48g", "etmfpcl", "etmfyqs", "etmncma", "etmvx5h" ], "score": [ 19, 6, 5, 2, 5 ], "text": [ "You and I make a $100 bet on the Super Bowl. I make a smaller side bet with Joe in the opposite direction so, if I lose our bet, I don't lose so much, Joe do...
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[ [], [], [], [], [ "https://www.nasdaq.com/symbol/aapl/option-chain" ] ]
13rkpl
why does olive oil pass through plastic containers?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/13rkpl/why_does_olive_oil_pass_through_plastic_containers/
{ "a_id": [ "c76kncg" ], "score": [ 3 ], "text": [ "What? It cant pass through plastic." ] }
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1x419c
why don't people struggling to survive eat the leaves of plants?
In various shows with people trying to survive in a jungle or some kind of environment, the stranded always try to find some sort of meat/water. Why don't they just eat the plants until they find some larger food/water source? They always complain about not having anything to eat but all around them are plants (with ...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1x419c/eli5why_dont_people_struggling_to_survive_eat_the/
{ "a_id": [ "cf801f9" ], "score": [ 2 ], "text": [ "The major problem is that human digestive systems are not designed to get protein from leaves and grasses.\n\nAnimals that can get protein from these plants often keep food in their digestive system longer (some of these animals have multiple sto...
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1nu71n
why can john boehner prevent from a vote a bill that the majority of the house supports?
It seems like there should be a way to bring bills to the floor for a vote. The discharge petition option takes a minimum of 10 days. I'm familiar with the intricacies of the Senate procedures, and those procedures were covered very well by the media in the past few years. But there's not a lot of detail in the me...
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1nu71n/eli5_why_can_john_boehner_prevent_from_a_vote_a/
{ "a_id": [ "ccm4xvs" ], "score": [ 2 ], "text": [ "the Hastert rule. the best way to describe it is it's a unspoken tradition for the GOP since the mid 90's which states that unless the majority of the republicans favor a bill, it will never reach the floor for a vote.\n\n_URL_0_" ] }
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[ [ "http://en.wikipedia.org/wiki/Hastert_Rule" ] ]
426xwr
just like the light spectrum, is there a range of odors that we can smell? can we classify odors on a scale?
For light, we classify them on the basis of their wavelength and frequency. Is there a 'frequency' for odors? Can we plot them on a scale just like the visible spectrum? Because just like the human eye can't perceive UV light, there are some odors that dogs can smell which humans can't. Does this have something to do w...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/426xwr/eli5_just_like_the_light_spectrum_is_there_a/
{ "a_id": [ "cz82q5s" ], "score": [ 7 ], "text": [ "The short answer is no.\n\n\"Smell\" is caused by a chemical reaction between gasses or tiny particles in the air and receptors in your nose. When certain receptors are triggered, your brain interprets that as a smell. You can only smell things t...
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27m8ox
what's the point of finding planets light years away?
Will we even reach that far? Why can't we spend money on improving what we have?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/27m8ox/eli5_whats_the_point_of_finding_planets_light/
{ "a_id": [ "ci25o97", "ci265zl", "ci26c11" ], "score": [ 3, 2, 5 ], "text": [ "Because 1. It is not really that expensive compared to other Government programs. 2. Science begets science. We might learn things applicable here on earth. 3. We are killing the earth as fast as we ...
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[ [], [], [ "http://useconomy.about.com/od/usfederalbudget/p/nasa_budget_cost.htm" ] ]
cithtx
why is the inflation target a range of 2-3%? what is bad about it dropping below this range?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/cithtx/eli5_why_is_the_inflation_target_a_range_of_23/
{ "a_id": [ "ev92x1r", "ev94ggq", "ev9hdfh", "eva3ogg" ], "score": [ 3, 10, 2, 3 ], "text": [ "The problem is that you can then get deflation, where prices actually decrease in value while this does initially seem like a good thing it can have some really serious consequenc...
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[ [ "https://youtu.be/-dnKdCwCw8o" ], [], [], [] ]
4fsgzz
meaning of polynomial-time in relation to the travelling salesman problem.
What is considered a polynomial-time solution to the travelling salesman problem?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4fsgzz/eli5_meaning_of_polynomialtime_in_relation_to_the/
{ "a_id": [ "d2bjz8e" ], "score": [ 2 ], "text": [ "As far as I no, nothing is. There aren't any polynomial-time solutions to the travelling salesman problem and it's still considered to be a (EDIT) non-*deterministic* polynomial problem." ] }
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3k6iz3
why do so many television shows aimed at young children feature non human characters?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/3k6iz3/eli5_why_do_so_many_television_shows_aimed_at/
{ "a_id": [ "cuv6yul" ], "score": [ 3 ], "text": [ "Young kids like non-human characters a lot. I once heard an anecdote that Sesame Street was originally going to have Muppets and humans NOT interact with each other, because producers thought it would be confusing for kids. In focus groups, kids ...
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2arlrg
if oxygen is flamable then why doesn't the whole sky catch on fire?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2arlrg/eli5_if_oxygen_is_flamable_then_why_doesnt_the/
{ "a_id": [ "ciy1lb8", "ciy1n7y", "ciy1qxc" ], "score": [ 13, 7, 6 ], "text": [ "Oxygen itself isn't flammable. It's the oxidizing agent. Pure oxygen is dangerous when it's around a fuel because that fuel will very easily ignite in the presence of pure oxygen. Remember fire needs t...
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4e1cyf
why do most apps require access to phone calls and media when they have nothing to do with it?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/4e1cyf/eli5_why_do_most_apps_require_access_to_phone/
{ "a_id": [ "d1wa21l", "d1waco2" ], "score": [ 42, 19 ], "text": [ "Normally to determine if you get a phone call through while using the app so they can handle it appropriately in their app. I'm assuming it's the same with media (i.e. you have music playing when you open the app).\n\nThis...
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28tnds
how does elon musk, the ceo of spacex, keep on making money when it seems his company only spends it?
Thanks in advance to whoever answers.
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/28tnds/eli5_how_does_elon_musk_the_ceo_of_spacex_keep_on/
{ "a_id": [ "ciecpbn", "ciecrom", "cieeg6x", "ciejfz9", "cieoj8d" ], "score": [ 11, 15, 18, 7, 2 ], "text": [ "Because he's also CEO and Chief Product Architect of Tesla Motors. ", "SpaceX isn't necessarily making money. It is actually mostly privately funded by...
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[ [], [ "http://en.wikipedia.org/wiki/SpaceX#Funding" ], [], [], [] ]
aznxfv
negative and positive controls in a scientific experiment. and all the other countrols.
[deleted]
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/aznxfv/eli5_negative_and_positive_controls_in_a/
{ "a_id": [ "ei92o0f", "ei93d5x" ], "score": [ 2, 2 ], "text": [ "I don't think you know what controls are. A control group is one that keeps within a set of parameters, while other groups have the variable introduced. Like 50 mice (not really a realistic number), 25 are kept in a cage, 25...
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do97b3
what does “packet loss” on an online game mean?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/do97b3/eli5_what_does_packet_loss_on_an_online_game_mean/
{ "a_id": [ "f5kxldm", "f5kxol2", "f5kzf0k" ], "score": [ 2, 5, 9 ], "text": [ "When you play the game, the copy on your computer sends packets of information to the central server. From there packets containing updates from the other players are sent to you.\n\nIt turns out that ...
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55i253
in the 60s, scientists in movies and tv were manly, respected men who happened to know a lot about science; by the 80s, scientists were portrayed as weak, geeky and socially hopeless. what happened, and when?
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/55i253/eli5_in_the_60s_scientists_in_movies_and_tv_were/
{ "a_id": [ "d8arf3l" ], "score": [ 7 ], "text": [ "JFK was elected in 1960. Recognizing the importance of the \"space race,\" and the significance of scientific and technological development, immediately began a program of fostering education at all levels. Science and technology flourished, and ...
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3asdd9
why are storms that last for centuries not possible on earth?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/3asdd9/eli5_why_are_storms_that_last_for_centuries_not/
{ "a_id": [ "csfip38", "csfjo9f", "csfmg9y" ], "score": [ 5, 4, 4 ], "text": [ "Less ridiculous amounts of energy. Some of the forces that drive those storms (which thenselves are as large or larger than earth) are just beyond the scale of our planet.", "I'm assuming you're ref...
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1ws3y4
why don't games like draw something and words with friends break copyright laws of games like pictionary and scrabble?
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/1ws3y4/why_dont_games_like_draw_something_and_words_with/
{ "a_id": [ "cf4vzrx", "cf4w2rf" ], "score": [ 2, 3 ], "text": [ " If I remember correctly, you cannot explicitly copyright the rules to a game, only the way that the rules are presented. I could be wrong, however, as I've heard this from people making retroclones of RPGs.", "_URL_0_\...
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[ [], [ "http://www.reddit.com/r/explainlikeimfive/comments/16enap/eli5_why_words_with_friends_is_not_being_sued_by/" ] ]
2nusig
why do grocery stores let you do self-checkout when that makes it so easy to steal?
I never understood this... one could easily steal, in particular by ringing produce through as other produce that is much cheaper (eg ringing bell peppers through as bananas).
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/2nusig/eli5_why_do_grocery_stores_let_you_do/
{ "a_id": [ "cmh1oou", "cmh1ten", "cmh46ia", "cmh57pf" ], "score": [ 28, 7, 2, 3 ], "text": [ "Grocery stores keep track of the estimated cost of theft. They have almost certainly determined that the cost savings associated with self-checkout are greater than any incrementa...
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k1iuq
how credit works
explainlikeimfive
http://www.reddit.com/r/explainlikeimfive/comments/k1iuq/how_credit_works/
{ "a_id": [ "c2gstqy", "c2gstqy" ], "score": [ 4, 4 ], "text": [ "If you don't have enough money, I can lend you some money for a while, but I want you to pay me back 10% extra than I gave you as payment for letting you use my money.", "If you don't have enough money, I can lend you so...
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86qijq
why do probiotic supplements need to be taken daily?
Surely if you are adding 1 - 50 billion new bacteria to your gut you shouldn't need to do this daily. How fast are they dying? Is it due to factors like high amounts of sugar, yeast and stress in people's lives that make it advisable to take a daily probiotic? Edit: Thank you all for your answers. It seems it is a muc...
explainlikeimfive
https://www.reddit.com/r/explainlikeimfive/comments/86qijq/eli5_why_do_probiotic_supplements_need_to_be/
{ "a_id": [ "dw76r0u", "dw7drg2", "dw7f85r", "dw7k3gf", "dw7ongl" ], "score": [ 285, 2, 6, 2, 3 ], "text": [ "Your gut is a class that has a session everyday. Your native flora are the students that show up to class each day.; they all have their preferred seats, an...
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